发明名称 |
REWRITABLE OPTICAL INFORMATION MEDIUM |
摘要 |
<p>A description is given of a rewritable optical information medium having a phase-change recording layer (3) on the basis of an alloy of Ge-Sb-Te-O, having the composition (GeaSbbTec)1-dOd, wherein: a+b+c=1 0.0001d0.035. The addition of oxygen considerably speeds up the crystallization rate of Ge-Sb-Te materials. Such a medium is suitable for high speed recording (i.e. at least eight times the CD-speed), such as for DVD-RAM and optical tape. The amount of oxygen in the recording layer (3) can be used to tune the crystallization rate to the desired value.</p> |
申请公布号 |
CA2280842(A1) |
申请公布日期 |
1999.06.17 |
申请号 |
CA19982280842 |
申请日期 |
1998.11.30 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
BORG, HERMANUS J.;RIJPERS, JOHANNES C. N.;JACOBS, BERNARDUS A. J.;ZHOU, GUO-FU |
分类号 |
B41M5/26;G11B7/0045;G11B7/006;G11B7/243;G11B7/253;G11B7/2534;G11B7/258;(IPC1-7):G11B7/24 |
主分类号 |
B41M5/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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